blob: 5ad5c0c5aa71e9940bb390cf4dd3d5014b0ec6c0 [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/containers/flat_map.h"
#include "cc/base/region.h"
#include "cc/cc_export.h"
#include "cc/input/touch_action.h"
namespace cc {
class Rect;
class CC_EXPORT TouchActionRegion {
TouchActionRegion(const TouchActionRegion& touch_action_region);
TouchActionRegion(TouchActionRegion&& touch_action_region);
explicit TouchActionRegion(const base::flat_map<TouchAction, Region>&);
void Union(TouchAction, const gfx::Rect&);
const Region& region() const { return *region_; }
const Region& GetRegionForTouchAction(TouchAction) const;
// Returns the touch actions that we are sure will be allowed at the point
// by finding the intersection of all touch actions whose regions contain the
// given point. If the map is empty, |kTouchActionAuto| is returned since no
// touch actions have been explicitly defined and the default touch action
// is auto.
TouchAction GetWhiteListedTouchAction(const gfx::Point&) const;
TouchActionRegion& operator=(const TouchActionRegion& other);
TouchActionRegion& operator=(TouchActionRegion&& other);
bool operator==(const TouchActionRegion& other) const;
// TODO(hayleyferr): Region could be owned directly instead of in a
// unique_ptr if Region supported efficient moving.
base::flat_map<TouchAction, Region> map_;
std::unique_ptr<Region> region_;
} // namespace cc